Downloader.JVZ

It allows to get into the affected computer.
It generates a large amount of network traffic activity with the consequent consumption of bandwidth.
It changes system permissions.
It downloads files from several websites.
It uses stealth techniques to avoid being detected by the user.
It does not spread automatically using its own means.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:

Aug. 6, 2006

Detection updated on:

Aug. 6, 2006

Statistics

No

Proactive protection:

Yes, using TruPrevent Technologies

Brief Description

Downloader.JVZ is a Trojan, which although seemingly inoffensive, can actually carry out attacks and intrusions.

It captures certain information entered or saved by the user, with the corresponding threat to privacy:
.

In the local network:
it generates a large amount of network activity and consumes bandwidth.

It reduces the security level of the computer:
it changes system permissions, decreasing the security level.

Downloader.JVZ accesses several websites to download files, which it then runs. These can be any type of file, although they are normally malware.

It uses stealth techniques to avoid being detected by the user:

It deletes the original file from which it was run once it is installed on the computer.

Downloader.JVZ does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.